title: [Progress in the field of obstetrics in Mexico during last 50 years].
mesh_terms: D004396:Coloring Agents; D006801:Humans; D008800:Mexico; D009774:Obstetrics
chemical_list: D004396:Coloring Agents
keywords: OBSTETRICS
vernacular_title: Los adelantos de la obstetricia en Mexico, en los ultimos cincuenta años.